JP2020136294A - Cabinet for housing electrical and electronic apparatus - Google Patents

Abstract

To provide a cabinet for housing electrical and electronic apparatus in which apparatus attachment space is secured, attachment effort of an earth terminal part is saved, and the earth terminal part is prevented from becoming obstacle of housing and wiring work of apparatus.SOLUTION: In a cabinet for housing electrical and electronic apparatus including an enclosure 2 having a front part 13 formed by folding a shroud 11 to the front opening 12 side, a door covering the front opening 12 of the enclosure 2, and a hinge member 50 supported by the front part 13 of the enclosure 2, the hinge member 50 is provided with an earth terminal part 54 for use in attachment of an earth wire. At least a part of the earth terminal part 54 is located on the outside of the frontage of the front opening 12.SELECTED DRAWING: Figure 4

Description

The present invention relates to a cabinet for storing electrical and electronic equipment.

When the earth terminal portion is provided in the cabinet for storing electrical and electronic equipment, the ground terminal portion is generally provided on the back plate portion in the housing or the equipment mounting plate provided on the back plate portion. However, with such a configuration, there is a problem that the device mounting space becomes narrow. Therefore, as described in Patent Document 1, a structure in which the ground terminal portion is installed at the corner of the front opening has been proposed.

Japanese Unexamined Patent Publication No. 2008-199863

However, in the case of the structure shown in Patent Document 1, a member used only for the ground terminal portion must be welded to the housing. There is a problem that the work at this time is troublesome and the number of parts increases. Further, in the structure shown in Patent Document 1, since the portion serving as the ground terminal portion is located inside the frontage of the front opening in the entire left-right direction, the ground terminal portion may interfere with the storage of equipment and wiring work. There is a risk of becoming.

The inventor of this case tried to solve this problem by diligently examining this point. An object to be solved by the present invention is to secure a space for mounting a device, save the trouble of mounting the ground terminal portion, and prevent the ground terminal portion from becoming an obstacle to storing the device and wiring work. ..

In order to solve the above problems, a housing having a front portion formed by bending a side plate toward the front opening, a door covering the front opening of the housing, and a hinge member supported by the front of the housing It is a cabinet for storing electrical and electronic equipment equipped with, and is provided with a ground terminal portion used for attaching a ground wire to a hinge member, and at least a part of the ground terminal portion is located outside the frontage of the front opening. The cabinet for storing electrical and electronic equipment.

Further, the hinge member includes a contact portion which is arranged to face the front portion, and a ground terminal portion used for attaching a ground wire to the tip side of the bent portion where the extension portion extending from the contact portion is bent. It is preferable that the bent portion is located outside the frontage of the front opening.

Further, it is preferable that the bent portion is arranged inside the housing.

Further, it is preferable that the ground terminal portion is configured so as to extend from the contact portion to the center side of the housing and diagonally rearward of the contact portion.

Further, the contact portion of the hinge member is located inside the housing so as to face the front portion, and the lower hinge member that supports the lower side of the door is provided with a hinge bearing portion that rotatably supports the door. The contact portion of the hinge member is preferably configured so that a portion located above the hinge bearing portion extends in the vertical direction.

Further, it is preferable that the contact portion of the hinge member is provided with a positioning portion used for positioning the housing and the hinge member.

In the present invention, it is possible to secure a space for mounting the device, save the trouble of mounting the ground terminal portion, and prevent the ground terminal portion from becoming an obstacle to the storage of the device and the wiring work.

It is a perspective view of the cabinet for storing electrical and electronic equipment in an embodiment. It is an exploded perspective view of the cabinet for storing electrical and electronic equipment shown in FIG. It is a perspective view of the housing shown in FIG. FIG. 3 is a sectional view taken along line IV-IV of a portion surrounded by a broken line in FIG. It is a perspective view of a housing and an opening plate. It is a perspective view which looked at the opening plate from the rear side. It is a perspective view which showed the state in the process of attaching an opening plate to a housing. It is a perspective view of a hinge member. It is a perspective view of the hinge member seen from the direction different from FIG. FIG. 3 is a cross-sectional view taken along the line XX of the portion surrounded by the broken line in FIG. It is a partial enlarged view of the lower hinge member located under the cabinet for storing electrical and electronic equipment. It is a partial enlarged view which shows the state which the hinge member is fixed to the front part of the housing. It is a perspective view of the door stop member in the door seen from the rear side, and the part where the door stop member is attached. It is a side view of a door stop member. It is a top view of the door stop member. It is a rear view of the door which attached the door stop member. 16 is a cross-sectional view taken along the line XVII-XVII around the door stop member in FIG. It is a side view of the door which attached the door stop member. FIG. 18 is a cross-sectional view taken along the line XIX-XIX around the door stop member in FIG.

A mode for carrying out the invention is shown below. As can be understood from FIGS. 1 to 4, the cabinet 1 for storing electrical and electronic equipment of the present embodiment has a front portion 13 formed by bending the side plate 11 toward the front opening 12 side. A housing 2 having a housing 2, a door 3 covering the front opening 12 of the housing 2, and a hinge member 50 connecting the door 3 and the housing 2 are provided, and the hinge member 50 is supported by the front surface 13 of the housing 2. It is a thing. The hinge member 50 of the electrical and electronic equipment storage cabinet 1 includes a ground terminal portion 54 used for attaching a ground wire to the hinge member 50, and at least a part of the ground terminal portion 54 is outside the frontage of the front opening 12. Located in. For this reason, it is possible to secure a space for mounting the device, save the trouble of mounting the ground terminal portion 54, and prevent the ground terminal portion 54 from becoming an obstacle to storing the device and wiring work. Further, since the hinge member 50 is provided with the ground terminal portion 54, the number of parts can be suppressed.

Further, the hinge member 50 of the electrical and electronic equipment storage cabinet 1 is provided with a contact portion 51 which is arranged to face the front surface portion 13, and is formed from a bent portion 53 in which an extension portion 52 extending from the contact portion 51 is bent. A ground terminal portion 54 used for attaching a ground wire is provided on the tip side. The bent portion 53 obtained by bending the extending portion 52 extending from the contact portion 51 is located outside the frontage of the front opening 12.

Further, as can be understood from the facts shown in FIGS. 1, 2, 5 to 7, the cabinet 1 for storing electrical and electronic equipment of the embodiment has a housing having an opening 14 on at least one side surface. It includes a body 2, a door 3 that covers the front surface of the housing 2, and an opening plate 40 that covers the opening 14. Further, the opening 14 of the cabinet 1 for storing electrical and electronic equipment is formed in a notch shape continuing from the front side of the housing 2, and the opening plate 40 includes a guide portion 41 for sandwiching the edge portion of the opening 14. It is slidably attached to the opening 14 from the front surface side of the housing 2. Therefore, the opening 14 can be attached from the front side of the housing 2.

Here, the configuration of the electrical / electronic equipment storage cabinet 1 will be described by taking the electrical / electronic equipment storage cabinet 1 of the embodiment as an example. The electrical and electronic equipment storage cabinet 1 of the embodiment includes a housing 2 having a front opening 12 and a door 3 covering the front opening 12 of the housing 2. Further, the housing 2 of the embodiment is provided with an opening 14 in the ceiling plate 15 and the bottom plate 16 so that the wire can be easily entered. The end portion of the opening 14 of the embodiment is formed so as to project inward from the end portion of the front surface portion 13, and the left-right width of the opening portion 14 is formed to be smaller than the frontage of the front opening portion 12. The opening 14 that is not used for the incoming line can be closed with the opening plate 40.

The electrical / electronic device storage cabinet 1 of the embodiment is configured so that the opening plate 40 can be attached to the housing 2 only by working from the front side of the housing 2. More specifically, the opening 14 is formed in a notch shape that continues from the front surface side of the housing 2, and the opening plate 40 is configured to include a guide portion 41 that sandwiches the edge portion of the opening 14. With this configuration, the opening plate 40 can be slidably attached to the opening 14 from the front side of the housing 2. More specifically, in the guide portion 41, a slit 45 is formed between the intermediate piece 48 and the posterior bent piece 44, and the end portion of the opening 14 is sandwiched between the slit 45 so that the guide portion 41 can slide. Therefore, the degree of freedom in arranging the electrical and electronic equipment storage cabinet 1 can be increased.

The opening plate 40 of the embodiment includes an intermediate piece 48 capable of covering the opening 14 of the housing 2. Further, it has a front bent piece 42 that is screw-fixed to the front portion 13 formed on the front side of the housing 2. The front bent piece 42 is configured to extend upward or downward on the front side of the housing 2, and at least a part thereof is fixed at a portion covered by the door 3 when the door 3 is closed. .. Therefore, the opening plate 40 cannot be removed from the housing 2 unless the door 3 is opened, and the security performance is excellent. The front side bent piece 42 is provided with a screw hole 49 used for fixing a screw.

Further, the opening plate 40 of the embodiment includes a posterior bent piece 44 configured to extend upward or downward on the rear side of the opening plate 40. The posterior bent piece 44 is positioned so as to project toward the inside of the housing 2. The posterior bent piece 44 of the embodiment constitutes a guide portion 41 together with the intermediate piece 48. That is, the opening plate 40 of the embodiment is configured so that the edge portion of the opening 14 can be sandwiched between the intermediate piece 48 and a part of the posterior bent piece 44.

In the opening plate 40 of the embodiment, the intermediate piece 48 faces the outer surface of the edge of the opening 14 of the housing 2, and the rear bent piece 44 slides toward the inner surface of the edge of the opening 14. It is configured to be movable. In order to make this possible, the left and right ends of the posterior bent piece 44 of the embodiment are constricted so that a portion adjacent to the intermediate piece 48 is partially cut out.

The opening plate 40 of the embodiment has a configuration having a wiring fixing portion 43 used for fixing a power line or a communication line connected to an electric / electronic device installed in the housing 2. The wiring fixing portion 43 of the example shown in FIG. 6 is provided with a hole-shaped wiring fixing portion 43 on the rear bent piece 44. If the wiring is fixed by using the wiring fixing portion 43 provided on the opening plate 40, the wiring can be fixed by using the space in the vicinity of the opening plate 40, and the effective use of the space can be promoted. Further, when a hole is formed as the wiring fixing portion 43, the number of parts can be suppressed.

The housing 2 of the embodiment includes a front surface portion 13 bent vertically from the side plates 11 located on the left and right sides of the housing 2 toward the front opening portion 12. Of these, one front portion 13 (front portion 13 on the left side in FIG. 3) is provided with a locking receiver 27 for a handle lock 37 provided on the door 3. Further, hinge members 50 used for rotatably supporting the door 3 are attached to the other front surface portion 13 (the front surface portion 13 on the right side in FIG. 3) at intervals in the vertical direction.

As can be seen from FIGS. 8 and 9, in the embodiment, the hinge member 50 attached to the housing 2 side is made of one metal member. The hinge member 50 includes an abutting portion 51 that abuts against the back surface (inside of the housing 2) of the front surface portion 13 of the housing 2. Further, the extension portion 52 extending from the contact portion 51 in the opening frontage direction (left direction in FIG. 4) is bent to form the bending portion 53, and the ground terminal screw 91 is provided on the tip side of the bending portion 53. The ground terminal portion 54 provided is provided. By using the ground terminal screw 91 provided in the ground terminal portion 54, the ground wire can be easily attached to and detached from the ground terminal portion 54. As described above, since the hinge member 50 is provided with the ground terminal portion 54, it is possible to save the trouble of attaching only the ground terminal portion 54 to the housing and improve the workability.

The bent portion 53 of the hinge member 50 is arranged outside the frontage of the front opening 12. Therefore, it is possible to prevent the ground terminal portion 54 from coming into contact with the ground terminal portion 54 during the installation of the device or the wiring work, and the workability can be improved. Further, as can be understood from FIGS. 4 and 10, in the embodiment, the bent portion 53 of the hinge member 50 is the inside of the housing 2, more specifically, the back side of the front portion 13 of the housing 2. Is placed in. Therefore, the ground terminal portion 54 is arranged near the back surface side of the front surface portion 13 of the housing 2, which cannot be effectively used as a device mounting space. Therefore, since the ground terminal portion 54 is arranged at a position separated from the device mounting space, the device mounting space can be effectively used. In the example shown in FIG. 4, the entire ground terminal portion 54 is arranged outside the frontage of the front opening portion 12. Therefore, the workability at the time of mounting the device and wiring work can be further improved.

The ground terminal portion 54 of the embodiment is configured to extend from the contact portion 51 to the center side of the housing 2 and diagonally rearward of the contact portion 51. With such a configuration, the ground terminal portion 54 can be directed toward the front opening 12 of the housing 2, so that when the ground terminal screw 91 of the ground terminal portion 54 is tightened or loosened. Workability can be improved.

In the embodiment, a hinge bearing portion 55 extending so as to be orthogonal to the front surface portion 13 is provided on the surface (outside of the housing 2) of the front surface portion 13 of the housing 2. The hinge bearing portion 55 is provided with a bearing hole 56, and the hinge shaft 61 of the hinge portion 60 provided on the door 3 is fitted into the bearing hole 56, as shown in FIG. The housing 2 and the door 3 are connected to each other, and the door 3 can be supported. Further, in the embodiment, the contact portion 51 and the hinge bearing portion 55 are connected by an upright portion 57 projecting forward from the contact portion 51. The upright portion 57 is a portion extending so as to be orthogonal to both the contact portion 51 and the hinge bearing portion 55.

By the way, among the hinge members 50 of the embodiment, a relatively large load may be applied to the lower hinge member 50 installed on the lower side of the housing 2 when the door 3 is opened or closed. When such a force is applied to the hinge member 50, the force applied from the hinge member 50 to the front surface portion 13 of the housing 2 becomes large. On the other hand, the contact portion 51 of the lower hinge member 50 of the embodiment is configured such that a portion located above the hinge bearing portion 55 extends in the vertical direction. The load applied from the door 3 exerts a force to rotate the hinge member 50 installed on the lower side, but the contact portion 51 extends in the vertical direction so that the portion located above the hinge bearing portion 55 extends in the vertical direction. Since it is in contact with the back surface of the front surface portion 13 so as to face the back surface portion 13, it is possible to avoid applying a large load locally to the front surface portion 13 from the hinge member 50 installed on the lower side. Therefore, it is not necessary to separately provide a reinforcing member, and the number of parts can be reduced.

In the hinge member 50 of the embodiment, the contact portion 51 is located between the ground terminal portion 54 and the hinge bearing portion 55, and the position of the hinge member 50 in the housing 2 is located in the contact portion 51. A positioning portion 58 used at the time of determination is provided. The positioning portion 58 of the embodiment has a convex shape, and by fitting the positioning portion 58 into the recess 17 provided in the front surface portion 13 of the housing 2, rough positioning is possible.

In such a configuration, the hinge member 50 is fixed to the front surface portion 13 of the housing 2 by using the positioning portion 58, and the male screw 93 is inserted into the hole portion 59 provided at a position different from the positioning portion 58. It can be inserted and screwed (see FIG. 12). By doing so, the hinge member 50 does not rotate even during the screwing work, and the workability is good. In addition, it can be fixed by screwing only at one place. As described above, when the positioning unit 58 is used, the number of parts can be reduced and the workability can be improved.

By the way, as can be understood from FIGS. 2 and 13, in the embodiment, the door stop member 70 is provided inside the door 3. The door stop member 70 is provided with a claw 71 in the center, and the door stop member 70 is attached to the door 3 by locking the claw 71 to the opening 18 provided on the door 3 side. By the way, if the door stop member 70 has a structure that only holds the claw 71, if a strong impact is applied to the door 3 when the door 3 is opened or closed, the claw 71 may be unlocked and the door stop member 70 may come off. There is.

Therefore, as can be understood from FIGS. 13 to 15, the door stop member 70 of the embodiment is provided with arm portions 72 that sandwich the end portion of the door 3 above and below the claw 71. The arm portion 72 includes a front side piece 73 and a rear side piece 74 so as to sandwich the housing 2 from the front-rear direction. Further, a convex portion 75 is provided between the front side piece 73 and the rear side piece 74.

On the other hand, as can be understood from FIG. 13, on the door 3 side, the opening 18 is located at a position corresponding to the claw 71 of the door stop member 70, and the position corresponding to the convex portion 75 of the arm portion 72. It has a notch 19. When the door stop member 70 is attached to such a door 3 from the end side of the door 3, the claw 71 is locked to the opening 18, as can be seen from FIGS. 16 to 19. Further, the arm portion 72 sandwiches the end portion of the door 3, and the convex portion 75 formed between the front side piece 73 and the rear side piece 74 comes into contact with the notch 19. Therefore, the impact in the left-right direction can be received by the base end side of the claw 71 and the arm portion 72. Further, with respect to the impact in the vertical direction, the convex portion 75 and the end portion of the notch 19 come into contact with each other and can receive the impact. Since the structure is capable of responding to impacts in the vertical and horizontal directions, it is possible to prevent the door stop member 70 from falling off.

By the way, in the door stop member 70 of the embodiment, the door stop member 70 comes into contact with the front surface portion 13 (left side plate 11 side in FIG. 1) of the housing 2 and functions as a door stop. The door stop member 70 is provided with a protruding portion 76 protruding toward the rear surface side. Further, the front surface portion 13 of the housing 2 is provided with an opening 21, and the protruding portion 76 is configured to fit into the opening 21 when the door 3 is closed. With such a configuration, it is possible to prevent the door from coming down.

The electrical and electronic equipment storage cabinet 1 of the present embodiment has a vertically symmetrical structure. Therefore, the left-right opening of the door 3 can be changed by turning the housing 2 upside down and changing the direction of the handle provided on the door 3. That is, the user can select the opening / closing method of the door 3 and attach the cabinet 1. Therefore, for example, it is not necessary to replace the hinge member 50 and the door stop member 70, and it is also necessary to change the positions of the hinge member 50 and the door stop member 70 even when the one used for opening right is to be used for opening left. Absent. Therefore, the number of parts to be prepared can be reduced, and the labor of work can be suppressed.

Although the present invention has been described above by taking the embodiment as an example, the present invention is not limited to the above embodiment and can be in various modes. For example, in the embodiment, the hinge uses a pivot hinge, but the hinge is not limited to this type of hinge.

The wiring fixing portion provided on the opening plate does not have to be limited to the hole, and the wiring fixing member may be provided on the opening plate. Further, the wiring fixing portion does not need to be provided on the rear bent piece, and may be provided at any position on the opening plate.

1 Cabinet for storing electrical and electronic equipment 2 Housing 3 Door 11 Side plate 12 Front opening 13 Front 50 Hinge member 51 Abutment 52 Extension 53 Bending 54 Ground terminal 55 Hinge bearing 58 Positioning

Claims (6)

Electrical and electronic equipment including a housing having a front portion formed by bending a side plate toward the front opening, a door covering the front opening of the housing, and a hinge member supported on the front of the housing. A cabinet for storing electrical and electronic equipment, which is a cabinet for storing electrical and electronic equipment, which is provided with a ground terminal portion used for attaching a ground wire to a hinge member, and at least a part of the ground terminal portion is located outside the frontage of the front opening. .. The hinge member includes a contact portion which is arranged to face the front portion, and also includes a ground terminal portion used for attaching a ground wire to the tip side of the bent portion where the extension portion extending from the contact portion is bent. The cabinet for storing electrical and electronic equipment according to claim 1, wherein the bent portion is located outside the frontage of the front opening. The cabinet for storing electrical and electronic equipment according to claim 2, wherein the bent portion is arranged inside the housing. The cabinet for storing electrical and electronic equipment according to claim 3, wherein the ground terminal portion is configured to extend from the contact portion to the center side of the housing and diagonally rearward of the contact portion. The abutting portion of the hinge member is located inside the housing so as to face the front portion, and the lower hinge member that supports the lower side of the door is provided with a hinge bearing portion that rotatably supports the door. The electrical and electronic equipment storage cabinet according to any one of claims 2 to 4, wherein the abutting portion is configured such that a portion located above the hinge bearing portion extends in the vertical direction. The cabinet for storing electrical and electronic equipment according to any one of claims 2 to 5, wherein the contact portion of the hinge member is provided with a positioning portion used for positioning the housing and the hinge member.

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